We’ve covered tiny engines, steam engines… here’s one of the biggest diesel engines – “The Wartsila-Sulzer RTA96-C turbocharged two-stroke diesel engine is the most powerful and most efficient prime-mover in the world today… It is available in 6 through 14 cylinder versions, all are inline engines. These engines were designed primarily for very large container ships. Ship owners like a single engine/single propeller design and the new generation of larger container ships needed a bigger engine to propel them… Even at it’s most efficient power setting, the big 14 consumes 1,660 gallons of heavy fuel oil per hour.” [via] – Link.